foo.cc: In function ‘int lengthOfLIS(std::vector<int>&)’:
foo.cc:13:35: error: expected ‘]’ before ‘dp’
   13 |                 dp[i] = max(dp[i[j dp[j] + 1);
      |                                   ^~~
      |                                   ]
foo.cc:13:33: error: invalid types ‘int[int]’ for array subscript
   13 |                 dp[i] = max(dp[i[j dp[j] + 1);
      |                                 ^
foo.cc:13:35: error: expected ‘]’ before ‘dp’
   13 |                 dp[i] = max(dp[i[j dp[j] + 1);
      |                                   ^~~
      |                                   ]